The objection to admissibility
18 The considerations of whether fresh evidence should be allowed to be led on appeal, including having regard to the fact that much of the evidence would appear to have been available to the appellant at the time of the hearing before the primary judge and deemed to be within the knowledge of the appellant as being actually within the knowledge of his counsel, can be put to one side. Since objection to the admissibility of the evidence has been taken by the Minister, it is with respect to that question that it is convenient to commence.
19 In order to be admissible, the evidence will first have to clear the hurdle of relevance in s 55 of the Evidence Act - that is, that it "could rationally affect (directly or indirectly) the assessment of the probability of the existence of a fact in issue in the proceeding."
20 Once admissible as relevant, the evidence would then have to not be caught by any exclusionary provision.
21 Insofar as the appellant sought to adduce evidence of various decisions of this Court on appeal from the primary judge, the evidence is inadmissible to prove the existence of any fact in issue in those proceedings: s 91 Evidence Act. It can be seen that the factual findings that the appellant seeks from this Court, based on judgments of this Court in other cases, are in relation to facts in issue in those other cases. For example, whether the judge gave adequate reasons or whether he denied the migration applicant procedural fairness. Those judgments are simply not admissible for that purpose.
22 The next relevant exclusionary provisions are those in Pt 3.6 of the Evidence Act, namely with regard to tendency and coincidence.
23 Section 94(3)(b) of the Evidence Act provides that Pt 3.6 "does not apply to evidence of … a tendency that a person has or had … if that … tendency is a fact in issue". In Allam v Aristocrat Technologies Australia Pty Ltd (No 2) [2012] FCAFC 75 at [33] it was held that this "should be understood to mean [an] 'ultimate fact in issue'."
24 Section 97 of the Evidence Act, expressing the tendency rule, provides that:
(1) Evidence of the character, reputation or conduct of a person, or a tendency that a person has or had, is not admissible to prove that a person has or had a tendency (whether because of the person's character or otherwise) to act in a particular way, or to have a particular state of mind unless:
(a) the party seeking to adduce the evidence gave reasonable notice in writing to each other party of the party's intention to adduce the evidence; and
(b) the court thinks that the evidence will, either by itself or having regard to other evidence adduced or to be adduced by the party seeking to adduce the evidence, have significant probative value.
25 Section 98 of the Evidence Act, expressing the coincidence rule, provides that:
(1) Evidence that 2 or more events occurred is not admissible to prove that a person did a particular act or had a particular state of mind on the basis that, having regard to any similarities in the events or the circumstances in which they occurred, or any similarities in both the events and the circumstances in which they occurred, it is improbable that the events occurred coincidentally unless:
(a) the party seeking to adduce the evidence gave reasonable notice in writing to each other party of the party's intention to adduce the evidence; and
(b) the court thinks that the evidence will, either by itself or having regard to other evidence adduced or to be adduced by the party seeking to adduce the evidence, have significant probative value.
26 Evidence was sought to be adduced by an appellant on a tendency and coincidence basis in CDD15 v Minister for Immigration and Border Protection [2017] FCAFC 65; (2017) 250 FCR 587 (CDD15). The Full Court (Perram, Robertson and Wigney JJ) said this at [75]:
As to the ostensible bias argument, the facts to be proved are facts from which 'a fair-minded and appropriately informed lay observer might reasonably apprehend that the Court might not bring a fair, impartial and independent mind to the determination of the matter on its merits': ALA15 v Minister for Immigration and Border Protection [2016] FCAFC 30 at [35] per Allsop CJ, Kenny and Griffiths JJ. This directs attention to the matter actually before the Court. In the context of such a test, the concept of tendency makes no sense. The ostensible bias issue does not relate to an inquiry into whether a judicial officer has a tendency to behave in any particular way. Rather, it is concerned with whether the way in which the judicial officer has behaved might generate a particular apprehension. The appellant's invocation of s 97 in relation to the ostensible bias case is, therefore, misconceived. That does not mean that the evidence of the other cases is necessarily irrelevant; rather, it just means that it is not relevant on a tendency basis. For that reason, we would not receive this additional evidence under s 97 in relation to the ostensible bias case in respect of which, as tendency evidence, it has no probative value.
27 Their Honours continued at [77]:
Different considerations apply in respect of the actual bias case. Here the tendency argument would be that the other two cases are evidence that his Honour had a tendency to decide cases adversely to refugee applicants regardless of their merits. However, for largely the same reason as that just given, it is not possible to gauge the correctness of that proposition without knowing a lot more about the cases and, in particular, about their merits. For that reason, we would not accept that the proposed evidence has significant probative value for the purposes of s 97(1)(b) of the Evidence Act and would not receive it as tendency evidence in relation to a case of actual bias. We would be prepared to accept, as a matter of theory, that the evidence could bear upon a case of actual bias in a way which did not involve the use of tendency reasoning. Again, however, we do not see that this could occur without, as we have already noted, some consideration of the underlying merits of the two cases.
28 The appellant submitted that CDD15 is incorrect and distinguishable on the facts as in the present case there is, so the argument went, sufficient information about the merits of the unrelated cases for the Court to conclude that the primary judge was actually biased against applicants in migration cases, including the present case, or conducted himself in such cases so as to give rise to a reasonable apprehension of bias in the present case.
29 We are unable to accept the appellant's submissions. In order to explain our conclusion, we will deal with the relevant considerations with regard to apprehended bias and actual bias separately before discussing the task that the appellant has set for himself.